28545085712 has 40 divisors (see below), whose sum is σ = 64975008000. Its totient is φ = 11976958080.

The previous prime is 28545085669. The next prime is 28545085763. The reversal of 28545085712 is 21758054582.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6235712 + ... + 6240287.

It is an arithmetic number, because the mean of its divisors is an integer number (1624375200).

Almost surely, 2^28545085712 is an apocalyptic number.

28545085712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28545085712 is an abundant number, since it is smaller than the sum of its proper divisors (36429922288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28545085712 is a wasteful number, since it uses less digits than its factorization.

28545085712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12476031 (or 12476025 counting only the distinct ones).

The product of its (nonzero) digits is 896000, while the sum is 47.

The spelling of 28545085712 in words is "twenty-eight billion, five hundred forty-five million, eighty-five thousand, seven hundred twelve".